I design the moments that determine whether people stay or leave.
Senior Product Designer specializing in onboarding, conversion, and growth. I start with the drop-off data, not the mockup.
(1) Every friction point in a funnel is a design failure. Every number that moves is a design decision validated.
(2) Design is accountable to the business, not to itself. Shipping is a checkpoint, not the finish line.
(3) Honest tradeoffs beat polished case studies. Organizational constraints are part of the work, not an excuse around it.
(4) Ownership does not end at handoff. It ends when the metric moves.
Selected work
Personal Portfolio
No template. No agency. Built from scratch in 14 days, 140 commits. Custom Astro, AI chat, design system, analytics, and 8 case studies shipped.
CLARK — New Onboarding Journey
Rebuilt a 15-step commitment wall into a modular, trust-first system. +36% end-to-end conversion. €582k projected new annual revenue.
CLARK — Offer View
60% of users left this screen without buying. Trust was the problem, not the UI. +28% conversion. −35% drop-off.
CLARK — Magic Box
We built an AI scanner to replace a broken upload flow. The model worked. Users still dropped because the timing of the feature was wrong.
Bewatec — ConnectedCare
Designed a healthcare app and full design system from scratch, for patients navigating hospital stays. +30% downloads. 4.4 App Store rating.
Bewatec — Digital Admission
Digitised hospital patient intake inside ConnectedCare. Forms, consent, and legally binding signatures across 40+ hospital partners. 94% completion without nurse intervention.
Vodafone
Redesigned cross-selling and checkout for 3M+ existing customers. One unified purchase flow across every sales scenario in the app. +19% conversion.
Pets Deli
Redesigned the e-commerce experience for Germany's leading premium pet food brand. New PDP, Category Stories, and a brand campaign delivered across web and app.
Insights
View all →- Design Engineering Designers should learn to code — here's how Why I use Claude Code instead of Figma specs, and how it changed my shipping speed.
- Design Engineering Design to code without handoff How I use Claude Code to let designers ship components directly without engineer handoff.
- Experimentation & CRO Designing with experimentation in mind How product designers can use A/B testing and experimentation to improve conversion, reduce friction, and drive measurable impact.
I write too
Read on Medium →Design to code without handoff
How I use Claude Code to let designers ship components directly — no engineer handoff, no lost intent.
Conversational AI is not a chat box
Designing assistants that feel natural — streaming responses, context awareness, and the details that make AI interactions human.
I'm Diego, a Senior Product Designer based in Berlin. I design the parts of products that determine whether people stay or leave. I've been doing this for 10+ years across Insurtech, Healthcare, and Telecom.
More about me →What people say
"Diego is a UX expert with a strong British-school training. He brings a structured approach to usability and always delivers designs grounded in real user needs."
"Hey Diego, just wanted to say good job on the Figma designs, pretty straightforward and well designed, makes my life catching up with all the features much much more easier!"
"I had the pleasure of working with Diego on several digital projects. His talent for UX and product design was key to their success — always going beyond to ensure an exceptional experience."
"We just started to work closely together and I found it really impressive how efficient we have been in our discovery workshop, you having the wonderful prototype ready next day and organizing the user testing so quickly."
"Diego's research on the LDK project was outstanding — he conducted user interviews, ran workshops, and turned findings into actionable design decisions that shaped the product."
"Just shipped the new onboarding — Diego's flow increased completion by 28%. The team is buzzing."
"Diego brings a rare mix of craft and strategy. He doesn't wait for specs — he shapes the product direction alongside PMs and engineers. A true partner."
"I had the pleasure to work with Diego on the Onboarding Journey project at Clark. Diego demonstrated excellent skills in UX design, from research to high-fidelity prototyping. He has a great sense of aesthetics and pays great attention to detail. Besides his skills, I really appreciated his open and collaborative way of working."
Looking for a designer who owns the problem, not just the deliverable.
Available for full-time roles in product-led teams where experimentation drives decisions.
Looking for 1:1 mentorship? Book a session on Calendly →
